code: def engine(self):
      return self._engine
  
file_path: FATE/python/fate/arch/computing/backends/eggroll/_table.py
imports: import logging
  from typing import Callable, Iterable, Any
  from eggroll.computing import RollPair
  from fate.arch.computing.api import ComputingEngine, KVTable
  from fate.arch.unify import URI
label_desc: Use image node_id 2 for calling the Table obj's underlying member method code with example usage: obj.engine() and returns: self